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arsen [322]
4 years ago
15

A buffer is 0.100 M in NH4Cl and 0.100 M NH3. When a small amount of hydrobromic acid is added to this buffer, which buffer comp

onent neutralizes the added acid?
A. NH4+
B. Cl-
C. NH3
D. None of the above
Chemistry
1 answer:
Vlad [161]4 years ago
8 0

Answer:

C. NH₃

Explanation:

This buffer is formed by a weak base (NH₃) and its conjugate acid (NH₄⁺) which comes from the salt NH₄Cl. When an acid is added (hydrobromic acid) it is neutralized by the basic component of the buffer, according to the following equation.

NH₃(aq) + HBr(aq) ⇄ NH₄⁺(aq) + Br⁻(aq)

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Commercial products commonly report concentration in terms of "percentage." Using this
Stella [2.4K]

The answer to the question is 0.8055 as the answer should not include units in it.

Molarity (M) = n/v

n = moles of solute

v = liters of solution

According to question

1% solution → 1 gram of solute for 100 milliliters of solution

2% solution → 2 grams of solute for 100 milliliters of solution

6% NaClO solution → 6 grams of NaClO (solute) for 100 milliliters of solution

Molar mass of NaClO = (22.98 + 35.5 + 16)g/mol = 74.48 g/mol

Atomic mass of Na = 22.98 g/mol

Atomic mass of Cl = 35.5 g/mol

Atomic mass of O = 16 g/mol

1 mol NaClO = 74.48 grams NaClO

74.48 grams NaClO = 1 mol NaClO

6 grams NaClO = (1×6) / 74.48 mole = 0.08055 mole

As unit molarity is mole / liter

So 100 milliliters = 0.1 liters

1 liter = 1000 milliliters

100 milliliters = 100/1000 liters = 0.1 liters

Molarity of NaClO = moles of solute (NaClO) / liters of solution or volume of solution

Molarity of NaClO = 0.08055 / 0.1 mole/L =  0.8055 mole/L

As in question it is mentioned that 'Do not type units into your answer'

So, Molarity of NaClO in clorox bleach = 0.8055

Thus we find out the value of molarity of NaClO in Clorox bleach which came out to be 0.8055 as we dont have to give the answer with units.

Learn more about Molarity here:

brainly.com/question/27208890

#SPJ10

8 0
2 years ago
I give brainliest help pls
ivann1987 [24]
I believe the answer is a compound because compounds can be separated when put together while mixtures can not.
4 0
4 years ago
Read 2 more answers
I neeeeeeed helpppppppp
tresset_1 [31]

Answer:

I cAnT sEe It

Explanation:

like fr i cant see anything on that picture

5 0
3 years ago
What biological molecule that is used for energy is represented by the structure below?
Helga [31]

Answer:

Glucose. C6H12O6

Explanation:

In aerobic respiration glucose generate ATP. Which are the source of energy.

3 0
3 years ago
Please help me! And if can explain me the work I would really appreciate it! Thank you!! ❤️
IgorC [24]

Answer: The answer is D

Explanation:

So there is 2K + 2H2O --> 2KOH + 1H2

2Potassium +  2Water ---> 2Potassium Hydroxide + 1Dihyrogen

7 0
3 years ago
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